31231068

素因数分解:

$2^2\times 3^1\times {\mathrm{11}}^2\times {\mathrm{137}}^1\times {\mathrm{157}}^1$

素因数の和:323

約数の個数: 72

約数和(自身を含む): 81198096

約数和(自身を除く): 49967028

約数列:

[1, 2, 3, 4, 6, 11, 12, 22, 33, 44, 66, 121, 132, 137, 157, 242, 274, 314, 363, 411, 471, 484, 548, 628, 726, 822, 942, 1452, 1507, 1644, 1727, 1884, 3014, 3454, 4521, 5181, 6028, 6908, 9042, 10362, 16577, 18084, 18997, 20724, 21509, 33154, 37994, 43018, 49731, 56991, 64527, 66308, 75988, 86036, 99462, 113982, 129054, 198924, 227964, 236599, 258108, 473198, 709797, 946396, 1419594, 2602589, 2839188, 5205178, 7807767, 10410356, 15615534, 31231068]

約数ペア:

[(1, 31231068), (2, 15615534), (3, 10410356), (4, 7807767), (6, 5205178), (11, 2839188), (12, 2602589), (22, 1419594), (33, 946396), (44, 709797), (66, 473198), (121, 258108), (132, 236599), (137, 227964), (157, 198924), (242, 129054), (274, 113982), (314, 99462), (363, 86036), (411, 75988), (471, 66308), (484, 64527), (548, 56991), (628, 49731), (726, 43018), (822, 37994), (942, 33154), (1452, 21509), (1507, 20724), (1644, 18997), (1727, 18084), (1884, 16577), (3014, 10362), (3454, 9042), (4521, 6908), (5181, 6028)]